Clamp.



J. DIEHL.

GLAMP.

APPLICATION FILED MAY 10, 1912.

Pateutefl June gi mssmw Witnesses lTEii arnrrr enrich,

JACQBJJIEHL, OF SI-IEBOYGAN, WISCONSIN.

messes,

Specification of Letters Patent.

Patented June 3, 1913.

Application filed May 10, 1912. Serial No. 686,525.

To all whmn it may concern:

Be it known that l, Jncoe DIEHL, a c1t1- zen of the United States, residing at- She- 'boygan, in the county of Sheboygan and State of Wisconsin, have invented a new and useful Clamp, of which the following is a specification.

The present invention relates to improvements in clamps, the primary object of the invention being the provision of a novel form of what is known C-clamp, in which abutting members.

A further object of the present invention is the provision of a novel mounting of lower abutting member, the same being swivelly connected to the clamp body and the work within the clamp.

With the foregoing and other objects in view which will appear as the description proceeds, the invention resides 1n the combination and arrangement of parts and in the details of construction hereinafter described and claimed, it being understood that changes in the precise embodiment of the invention herein disclosed canbe made within the scope of what is claimed without departing from the spirit of the invention.

the space i therebetween, the said lugs 3 and 3 being provided with the alined interiorly threaded apertures 3 for the reception of the clamping screw 5. This clamping screw 0 is provided with the actuating knob or handle 6 at the upper end, and upon the lower end thereof is formed a sphere or ball 7 which is fitted within the malleable fingers 8 which constitute a socket and carry the abutting plate 9, thus providing a means whereby said abutting plate may assume various angles when engaging the work.

By the means of the spaced lugs 3 and 3, it will be seen that the screw is braced at two points and thereby the same is held against any binding action due any torsional strain thrown upon the screw 5 when in clamping position. The lower terminal 10 of the clamping frame 1 is provided with the enlargediportion 11 in which is mounted the pin 12 which constitutes .a journal for the lugs 13 of the two plates 14 which are held together and in relative position to each other by means of the riveting pins 15. These two plates 14* constitute the lower swiveled abutment carrying member and are so disposed with relation to the terminal 10 as to have an oscillatory movement longitudinally of the arm 10 and are each provided with the respective spherical sockets 16, in the present instance two being shown, in which are mounted the balls or spheres 17 provided with shanks 18, and each carrying its respective abutment plate 19. By this means it will be seen that the respective plates 19 may be tilted to conform to the surface clamped between the said plates 19 and the plate 9 carried by the screw 5. It will thus be seen that any shape of work may be properly clamped between the plates 9 and 19 and that by reason of the spaced lugs 8 and 3, the torsion thrown upon the screw will be properly taken care of and the screw will always travel in the desired position guided by said lugs 3 and 3.

What is claimed is:

A C-clamp, having a screw fitted in one terminal, an abutment plate connected to the screw by a ball-and-socket joint, two plates connected together and having terminal straddling lugs pivoted astride the other terminal of the clamp for back and forth swinging movement relatively to the abutas my own, I have hereto affixed my sigma ment plate of the sciifvgand two ablutment ture in the presenge of twoiwitnesses. plates connected eae y a balLanc-socket joint to the two swinging plates and for 00- JACOB DIEHL' 5 operation with the abutment plate of the Witnesses: 1

scgrew. H. Z. OHLMANN {[1 11 testimony that I claim the foregoing EDWARD A. LUI-IMANN. 

